Abstract: The present invention relates to a washer having a having central hole, a bolt under head engaging surface (under head surface) and a bearing engaging surface (bearing surface) with a serration on both surfaces, wherein the serration on the bolt under head engaging surface comprises a saw tooth structure, the edges of the saw tooth structure in top view of the bolt under head engaging surface of the washer have a boomerang-like shape, the bolt under head engaging surface has a chamfer on its inner periphery, the serration on the bearing engaging surface comprises a plurality of teeth which in top view of the bolt under head engaging surface run in the direction from the inner to the outer circumference of the washer surface and which are inclined with regard to radially extending straight lines originating from the washer center, and the top sections of the edges of both the teeth and the saw tooth structure in cross-sectional view of the serrations are rounded.

Abstract: A computer-implementable method for controlling the handling of products in a warehouse is performed by acquiring a first item of data identifying a real-time position of a plurality of trolleys (A, B, C) inside the warehouse and a second item of data identifying a plurality of operations to be performed (1-9). A predictive model is applied to such data, generating a simulation of the handling of the trolleys (A, B, C) inside the warehouse during the performance of respective handling operations. As a function of such a simulation, a unique association is determined between each trolley and a respective group of operations to be performed (1-9) such as to minimise the overall time for the performance of the plurality of handling operations, which is then communicated to the individual trolleys (A, B, C). The present invention further relates to a system configured to carry out a method for controlling the handling of products in a warehouse.

Abstract: The present invention concerns an energy dispersion calibration method for calibrating an electron spectrometer of an electron spectrometer system including at least one electron emission source, electron optics and the electron spectrometer. The method comprising: obtaining, providing or receiving at least one electron energy loss spectrum produced by electrons of the electron spectrometer system exchanging energy with at least one resonant optical mode of an optical resonator into which light at a resonant wavelength is coupled; calculating or providing a Fourier transform of the at least one electron energy loss spectrum or a part of the at least one electron energy loss spectrum; determining or providing an energy dispersion (?E) of the electron spectrometer according to the equation ? ? E = f E ? hc ? ? N ? or ? ? ? E = f E ? E p N .

Abstract: The present invention relates to a washer having a having central hole, a bolt under head engaging surface (under head surface) and a bearing engaging surface (bearing surface) with a serration on both surfaces, wherein the serration on the bolt under head engaging surface comprises a saw tooth structure, the edges of the saw tooth structure in top view of the bolt under head engaging surface of the washer have a boomerang-like shape, the bolt under head engaging surface has a chamfer on its inner periphery, the serration on the bearing engaging surface comprises a plurality of teeth which in top view of the bolt under head engaging surface run in the direction from the inner to the outer circumference of the washer surface and which are inclined with regard to radially extending straight lines originating from the washer center, and the top sections of the edges of both the teeth and the saw tooth structure in cross-sectional view of the serrations are rounded.